Clamping appliance.



A. F. SCHROEDER,

CLAMFING APPUANCE.

APPLiCATIOH FILED JUNE m. 1915.

1,204,827, Patented Nova 14, 1916.

Iv VENTO.

UNITED STATES r orric.

ALBERT F. SCHROEDER; OF CLEVELAND, OHIO.

cnalvirnve APPLIANCE.

'1 '0 all whom it may concern Be it known that I, ALBERT F. Sonnonnnn, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and useful Improvement in Clamping Appliances, of which the following is a specification, the principle of the invention being herein explained and the best mode in. which I have contemplated applying that principle, so as to distinguish it from other inventions.

This invention appertains to film reels and more particularly to the manner of attaching the common spring finger employed to hold the end of a film against the drum of the reel, preparatory to winding thereon.

My object has been to devise this accessory to a reel structure of the character stated, which shall be etiicacious and withal simple and hence economical of manufacture.

A further object has been to afford facility of assemblage and incidentally capability in the way of easy and ready replacement by dis-assemblage.

With the foregoing and other objects in view the invention consists of the novel construction, combination and arrangement of parts as hereinafter more specifically described and illustrated in the accompanying drawing, wherein is shown embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claimshereunto appended.

Adverting to the drawing, Figure I is a perspective view of the type of reel improved by the addition of my inventive accessory. Fig. II is a plan view of the hub of the reel seen in Fig. I. Fig. III is a section of the hub viewed from the inside. Fig. IV is a section on line.4;4: of Fig. II. Figs. V, VI and VII are perspective views showing the manner in which displacement of one part, with respect to another may be accomplished.

The structure of the conventional type .of film reel as is shown in Fig. I includes a pair of heads 1 between which a cylindrical hub 2 is mounted. Connection therebetween is effected by means of two triple setsof circularly arranged lugs 3 adapted to be inserted into suitable openings 4 in the heads 1, after which they are upset.

The foregoing terse description suflices since this invention is particularly associ- Specification of Letters Patent.

filed February 16, 1915. Serial No. 103,687.

- thereby.

Patented Nov. 14's, 1916.

This application filed June 14, 1916.

ated with a featured accessory for removable attachment to the hub. The hub is'provided with a cutout portion or slot 5 having a small intercommunicating portion 6 where by lug 7 is formed. Inasmuch, as the hubs in this type of reel are usually formed of metal having a certain measure of elasticity such lug 7 may be readily bent back and forth relative to the plane of the opening. A spring finger 8 of arcuate formation, and in fact of curvature having a somewhat shorter radius than that of hub 2 is adapted to overlie the slot 5 and be inserted under the lug '7 as may be seen in Figs. I and II. A middle portion 9 of the finger S is formed as a depression having a pair of angular offsets and adapted to be occupied by the lug 7 when the parts are assembled for use. In practice. the depression 9 in the finger 8 is laid underneath the lug 7 while the latter is bent outwardly as appears in Fig. VI and when in place the lug is again depressed so as to occupy the depression 9 and substantially conform to the plane of the periphery of the hub, thereby effecting a locked relationship therebetween.

The outer extremities of the spring finger 8 are slightly curved outwardly to facilitate manual lifting when it is desired to slip one end of the film underneath to be engaged Owing to the formation of the finger 8, and its own resilience the extremities 10 are caused to have a yielding engagement with the hub on opposite sides of the lug 7 so that the other extremities may serve the purpose of a catch for securing the end of the film roll preparatory to winding upon the hub.

The advantage of my featured film clip in addition to simplicity and economy of manufacture, lies in the readiness which is afforded of replacing a depreciated or fractured finger. The manner in which this may be done is readily comprehended upon inspection of Figs. V, VI and VII.

This application has been divided out and is thereforea continuation of my earlier copending case Serial Nol 8,469, as to all matter common to the two applications.

I claim:

1. A clamping appliance comprising a member composed of flexible material and provided with a slot having a projection extending within the same to form a lug, and a clamping finger inserted in said slot,

said lug holding said finger in place whereby the two extremlties of the said finger bear against said member on opposite sides of said slot.

2. A clamping appliance comprising a bent member having a given measure of flexibility and provided with an aperture having a projection extending within the same whereby to form a lug capable of being flexed relative to the plane of such aperture, and a resilient clamping finger having an interjacent portion inserted under neath'said lug and its ends engaging said member, said finger also being bent so that one of its ends yieldingly engages said member.

A clamping appliance comprising the combination with a metal hub having an irregular slot, a projection extending within the same to form an integral lug of given flexibility, and a spring finger fashioned between its-ends with a depression adapted to be occupied by said lug or released therefrom whereby said finger is detachably held in place as and for the purpose specified.

4. A clamping appliance comprising the combination with a cylindrical metal hub having a slot provided with a projection extending within the same to form an integral lug of given flexibility and projected in a direction substantially parallel to the axis of said hub, and an arcuate spring finger fashioned between its ends with a depression inserted in said slot, the ends of said finger extending beyond opposite edges of said slot respectively, said depression being occupied by said lug whereby said finger is held in place as and for the purpose specified.

5. A film reel clamping appliance comprising a pair of heads, a hub secured therebctween and provided in its outer surface with a pair of apertural portions and an intercommunicating narrow slot to form a lug, a resilient member extending through both of said portions, said lug adapted to hold said member in place, the arrangement being such that one extremity of such mem ber yieldingly engages said hub surface.

6. A film reel clamping appliance comprising a pair of heads, a hub secured therebetween, said hub being provided with an aperture, an arcuate finger having one portion offset and passed through said aperture, and a lug carried by said hub to secure said offset portion inwardly of said hub, an end of said finger being adapted to yieldingly engage the periphery of said hub.

7. A. film reel clamping appliance comprising a tubular hub provided with an aperture, and a duplex clamping contrivance having an interjacent portion depressed in said aperture, the extremities of said contrivance yieldingly engaging the exterior surface of said hub, and a lug projected from said hub and adapted to bear against said contrivance whereby to hold the same in place, said lug being capable of movement relative to the hub to facilitate the positioning of said contrivance.

A clamping appliance cranprising a hollow hub of thin sheet metal having an aperture, a spring finger inserted in said aperture and engaging said hub surface interiorly and exteriorly on different sides of said aperture respectively, and means including a lug normally interjected into the plane of said aperture for holding such interiorly located portion of said finger in place by contact of the latter for a given distance along and against the interior surface of said lug whereby the exteriorly located portion of said fnger yieldingly engages said hub to serve as a catch, said means being capable of displacement relative to the hub whereby said finger may be withdrawn. I

9. be film reel clamping appliance comprising a hollow hub provided with an aperture a spring finger inserted into said aperture, a portion of said hub bordering upon said aperture along an edge thereof in a direction substantially parallel to the axis of the hub being adapted to engage and hold said finger in place, whereby an outer end of said finger is held in yielding engagement with the hub.

10. A film reel clamping appliance comprising a hollow hub provided with an aperture of irregular outline and having a projection extending within the same whereby a lug is formed integral with said hub, and a spring finger inserted in said aperture so as to be engaged and held in place by said lug, said finger furthermore having its inserted portion fashioned with an offset engaged by an edge of said aperture whereby to facilitate the proper positioning of the parts.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

